- HD 1080
- Runtime: m.
- Status: Ended
- 0
- Languages: ko
- Country: South Korea
- Director: Jang Tae-yoo
- Stars: Lee Ha-nee, Lee Jong-won, Kim Sang-joong, Lee Ki-woo, Park Se-hyun
- keywords: widow, investigation, real life, double identity, daughter–in–law, joseon dynasty, sageuk, age-gap relationship, action, freindship
- Production_studio: Saram Entertainment, Base Story, Film Geurida
- Slogan: The double life of a masked widow.
- Seasons: 1
- Episodes: 12
- First air date: 2024-01-12
- Last air date: 2024-02-17
- providers: Kocowa, Rakuten Viki, OnDemandKorea
- The Knight Flower is featured in the top rankings of 2024
- #23 in Top Comedy Series of 2024
- #39 in Top Drama Series of 2024
- #7 in Top Mystery Series of 2024
Cho Yeo Hwa has been a widow for 15 years. Her in-laws are the most prestigious noble family in the kingdom. During the day, she leads the life of a widow devoted entirely to her dead husband's memory and rarely ventures outside the gate of her home. At night, Yeo Hwa dons the mask of Hero, who secretly jumps over the surrounding wall to save the helpless.